Telegraph printer



Jan. 8, 1946.

R. F. DIRKES ET AL TELEGRAPH .P-RINTER 3 Sheets-Sheet 1 Fileq Feb INVENTORS R.F. DIRKES T.E.MELICK vac/.0

ATTOR V.R.KIMBALL INZY.

Jan. 8.1 946. R. F. DIRKES ETAL 2,

TELEGRAPH PRINTER Filed Feb. 9, 1940 3 Sheets-Sheet 3 Jil FIG. II

INVENTORS R. F. DIRKES T. E. MELICK l6! BY V. R.K.IMBAL.L

ATTORNEY Patented Jan. 8, 1946 UNITED STATES PATENT TOFFICET TELEGRAPH PRINTER Robert F. Dirkes, Jamaica, N. Y., and Thomas E. Melick, Neshanic, and Vernon R. Kimball, Union City, N. J., assignor's' to The Western 7 Union Telegraph Company, New York, N. Y., a corporation of New York Application February 9, 1940, Serial No. 313,031 r 26 Claims. (01.1'78-34) The present invention relates primarily to printing telegraph apparatus and mor particularly to printing telegraph receiving instruments wherein characters representative of received code roups of signals are printed upon a receiving medium such as a tape.

The principal object of the invention is to provide a receiving printing telegraph instrument or receiver which is reliable, quiet and efficient in operation, capable of operating at a high rate of speed and which may be easily and cheaply manufactured and maintained. In accordance with the above the design of the receiving instrument is such that a minimum number of parts are required and a large percentage of the parts employed are such that they may readily be made either from stampings or on automatic screw machines. Although some of the parts or elements require machining thereon at certain points the design thereof is such that the machining is a minimum. Also the location of various elements and sub-combinations thereof of the machine is such as to require a minim-um number of interconnecting elements.

In keeping with the object of the invention only two operating sleeves are employed, a selector cam operating sleeve and an operating cam sleeve,

and these are disposed parallel to one another in.

order to enable the employment of simpler driving means therefor other than what is generally required where such sleeves are at angles to one another. Other'such arrangements, and including a simplified orienting device comprising a minimum number of easily manufactured elements, permit the construction of a simplified receiver in accordance with the invention as will be apparent hereinafter.

The receiver or printer'operates on what is known in the art as the start-stop principle. Where start-stop signals are employed, the intelligence impulses are usually in groups or permutations of a given number, usually 5, and each group of intelligence impulses is preceded by a start impulse of one line condition and followed by a rest or stop impulse of the opposite line condition to the start impulse. Th function of the start and stop impulses is to maintain synchronism between the receiving, printer and the source of signals. The start impulse initiates the operation of the receiver for one cycle at the beginning of a code group and the stop impulse stops the same at the end of the cycle. The permutations of variable impulses received between the start and stop impulses control the printer in accordance therewith to perform its various functions.

In the preferred embodiment of the invention a group of selector ,latchesis employed, one for each of the live variable impulses in a code group. The latches have two paths of movement and which path of movement a latch is operated throughin a cycle of operation is determined by the condition of the associated signaling impulse.

Cams operating in timed relation to the received impulses time the operation of the latches. In

one path of movement of the latches they pivot idly about one end, whereas the other path of movement they pivot about theopposite ends and in doing so unlatch associated selectors. The selectors associated with the latches selectively operated are thereupon allowed to move from their normal, unselected position to selected operated I positions. The selectors thus assume settings in normal and selected positions representative, ac-

cording to a predetermined arrangement, the

received code group. Following the selective 0P- eration of the selectors a transfer bail operated by an individually associated camtransfers the settingsof the selectors toa set of transfer bars. Thetransfer bars in turn control a type wheel stop unit which selectively stops the type wheel in any one of a plurality of angular positions. Following the transfer operation, a resetting bail operated by an associated cam returns the selectors in selectively operated positions to their normally unoperated latched positions where they are again in condition to be operated in response to the next code group. Various other operations incident toa cycle of operation of the receiver are performed during the above mentioned functions and in timed relation therewith as timed by their associated cams. These functions will be apparent hereinafter in connection with the detailed description of the invention.

A more thorough and complete understanding of the invention may be had from the following detailed description when taken in conjunction with the accompanying drawings in which:

Fig. 1 is an exploded perspective view of some of the principal elements of the invention showing the manner in which these various elements cooperate with one another; V M

Fig. 2 is a'iragmentary sectional view taken through the centerand along the axis thereof of the selecting and operating cam sleeves;

Fig. 3 is a schematic arrangement of the gears employed to rotate the various shafts;

Fig. 4 is a longitudinalsectional view taken through the center of the type wheelstop unit;

Fig.- is a view showing the relative location Figs. 6 and 7 are views similar to Fig. 5 showing 5 i the elements. thereof in operated positions;

Fig. 8 is a sectional view of aiclutch'aempldyed q to rotate the operating cam sleeve taken substantially on line 8-8 of Fig. 2;

Fig. 9 is a fragmentary plan view of the orient l ing mechanism which is employed to stop the selector shaft in variable positions according. to

the'setting of the orientingmechanis'm Figs. 10 and 11 are frontifaiidfileftlhandi"el'e spring 52 to engage the point 53 with the teeth of the rotating ratchet 41 whereupon the operating cam sleeve 42 rotateswith the shaft 26. The trip lever 54, as hereinafter pointed out, is only momentarily operated, and is thereafter back in its normal position ready. to. engage thesurface 5E and 'pivot the ratchet dog in ai -counterclockwise direction to disengage the point 53 from the teeth of the ratchet 47, after one revolution of'the operating cam sleeve 42. Thus each time the 'ti'ip vlever 54 is actuated the operating cam V sleeve 42iis released for one and only one revoluvational views respectively ofthe orlenting-mechanismshown in Fig. 9; and

Fig. .12 is a timing chart of the various cams on the operating cam sleeve.

Referring first to Figs. 2 and 3, a frame men' ber 21 suitably supported in' a *vertical'position 3 servesas-a m'ain support-of ithe' variou elemen'ts and combinations of the printer. The frame -ZI 1 has a horizontal section, not show n; at the bottom thereof :upon whichi's mounted-the drivingmotor} also not-shown-,-=from'which derived the v 2 power; for-operating the receiver; Driven fromthe motor and adapted to be constantly rotated- 7 .therebyis a -gear 22 -which meshes with-another I gear- 23 =niounted-on a collar 24, which in turn is'secured to an operating shaft -26.- The gear- .23- meshes with a selector shaft-gear 21 located thereabove which is secured to a colla 1"28, loosely mounted onthe-selector shaft 29i An idlerfgear" 3I-pivotall y mounted on -a stud32 in theframe- 2| meshes'w-ith' the gear 23'anda stopunit driv in'g-gea-r- 33: The stop unitdriving' gear 33; Fig.

4; is-secured to acollar SG Which in turn-is loosely mounted adjacent theleft-hand end of the-type wheel stopunitshaft 31. 'Ihe m'anner in'which ciated' mechanisms -will hereinafter he "pointed out:-

'I-heoperatingshaft 26, Fig.2} is journaled' ad=- jacen t l the right" hand end thereof in a bushing end- 0f theshaft 'is" journaled in a j bushing 39- sup'port'ed iri a hracket--4t; which is secured-to"- theframe 2lby cneans not'shown; An operat ing 'cam 'sleeve- 42-is loosely mounted hymeans" Y. tion "ata"time.

Mouh'tedfbntheioperating cam sleeve 42 from lefttoright, Fig; 2; is a print cam 51, a feed cam 58,.anotched camor disc 59 for prevented rotation 'of the sleeve in a reversed direction, a selectorresettingcamtfl, a selector transfer cam 6| v and a transfer bar resetting cam 62. The above mentioned cams 51 to 62, intermediate with spaces- 1 such 63 are 1' allclamped again'st a fiangew64 at the righti hand end-of the sleeve' 42 for rotation: therewith :byia nut i66in' -thra'ded engagement with the'sthreaded left hand .eiid ofthef'sleeve '42;- Thus,=.all' the: above mention'ed cams 57 to 62 are clamped irrpositiouand are-r0- tatable with the -sleeve:42. l

Ashereinbefore'stated, the constantlyrritating operating'ishaft gear 23 mes'hes :with and' drives:

the selector 'cam' shaft gear 21;..which together is normally tending: torotate through the action 1 38 supportedin the=frame-2 I whilethe left hand 451:

Of bushings' 43 and 44- in the ends thereof on the operating-shaft 26; The operating cam sleeve" 42 is rotated from theoperatingshaft 26 through 7 a'positive action or grab clutch indicated'in=gen-- eral by reference numeral 46.- 'The-driving ele*- ment ofthe clutch- 4Bcomprises"a='ratchet 41 forced on the-constantly rotating operating" shaft 26- for' rotation therewith while a recessed mem ber 48, Figs; 2 and 8; comprises the'drivenmem ber of the clutch." The recessed-member 48-is-' adapted to rotate'with' the-operating cam sleeve 42 and carries a ratchet dog 49 pivotally mounted on apin 5| therein. A'fiat springBZ-secured to the outside of the recessed member'48'normallytends to 'pivot' the ratchet" dog 49-'in' a'clockwise direction, as shown in'Fig'. 8; to'bringa; point 5-- 53 into engagement with-the teeth of thecon-"' stantly rotating ratchet- 41; Howeventhe'mem ber 48 together with the operating'cam sleeve" 42. is normally held'at restin'their normal rest position by a trip lever-54 engaging a surface 56" of the dog '49 "to'hold th'epoint 53' out'ofj'engage m'ent'with 'theteetn of"th'e"ratchet 41? When the trip 54 is" actuatedin a manner hereinafter' described," the'ratchet dog 49is allowed to pivot in"'a"clockwise-'direction' under theactioh "orthe" 3;

of a friction clutch, indicated-in general by'refk erencenumeral 61, Fig.- 2; located-adjacent 1 theright handend thereof. The frictionv clutch =6! is shown diagrammatically. in Fig. 1. Thesethe various shafts serve-to: operatetheir asso' lector cam shaft 29, Fig- 2, is journaled adjacent:

itsceriter in azloushingififi-supported in the frame 1 2| and at theleft handvendthereof in asimilar bushing; Bahia-bracket H, also-supported from theframe 2|; 7 h

Thefriction clutch-61 employed to rotate the selector cam shaft 29 comprises a set ofpins 12 extendingaxially from the collar 28. These pins 12 engage radial 'slotsin elements such as-Bakelitejsegments' I3 to rotate the same with the collar. A"'circularly coild radially. contractable spring- 'l' l' sur'rou'nds the segments ii and loompresses them together with a friction element such" as. a'felt' sleeve 16 against the outerperiphery'of 'a'coll'ar Tl. The collar 'lTis mountedon" a section ofthe"shaft29,'which has flatsthereon andis' rotatable with the shaft by virtue/of. the flats; The segments 73, togethenwith the felt' sleeves 16, pressing against the'peripheryfof the collar" tends'to rotateth'esame, together with the'shaftheld atirest its normal restpositi'on;

the'felt sleeve 'lfi slipsaroundthe periphery of" thecollar' 11.

Fixed to 'the-selector"cam shaft 29for rotation therewith, intermediate the .two bushings? 68 arid 69;-is a 'selectorcamsleeve 18: Mounted'onf the camf sleeve" 18 are five notched select'or'cams 79' and atrip camli'l. AspacerBZseparates'the we cam' 8| from" the selector camsi'lywhile' a'nut83 in threaded" engagementwith' the "threadeddeft hand end of thecamsleeve "l8 clamps'the'se'lector cams l9 andth'e trip 'cam" 8 1 against a flangeat the right h'and endi of" the leeve" so that i the cams are rotatable-with the'slee'vez The elements" which cooperatewith"' the various canis"on' the selector cam sleeve will hereinafter be described in detail in connection with the description of these elements. left handend of the selector cam shaft 29 by means of a clamping screw 86 is rotatable therewith, and controls the rotationof the typewheel shaft in a manner hereinafter described.

In order to compensate for variations in the start impulses relative to the following intelli gence impulse which are due to line or other conditions, an orienting mechanism is employed and v such a mechanism as is well known in the art, permits compensating for the variable start impulses in order that the various selector cams cooperate with associated elements, which in the present invention arethe above mentioned selector latches, in the midpoint or most effectiv point of their respective signaling impulses. Primarily this is accomplished by varying the stop position of the selector cam shaft 29. The selector magnet which determines the paths of movement of the selector latches as hereinbefore briefly stated also controls through the instrumentality of the orienting mechanism the release and stopping of the selector cam shaft 29. The selector magnet 81, Fig. 1, comprising two individually wound coils is suitably mounted on a bracket 88 forming a part of the printer frame. Associated with the magnet 87 is an armature 89 secured to the depending portion of an armature lever 9| pivotally mounted on a pivot rod 92. A retractile spring 93 secured to the armature lever 9| normally tends to pivot the same in a counterclockwise direction as shown in Fig. 1 to a so-called retracted position.

In start-stop telegraph systems the line circuit is normally closed during idle or rest periods and accordingly the selector magnet 81 will be energized during such periods to pivot the associated armature lever 9| to its operated position against the action of the attached retractile spring 93. Associated with the front side of the depending section of the armature lever 9| is an arm 94 of a bellcrank 96. The bellcrank 96 -is pivotally mounted on a verticle shoulder screw 91 supported in the bracket 88 and a spring 98 at tached to the other arm 99 of the bellcrank 96 normally tends to pivot the same in a counterclockwise direction as view from above, to hold the end of the arm 99 in engagement with the front-side-of the armature 1ever'9I. The springs 93 and 98 work against each other, however, the strength of the spring 93 is so much greater than that of the spring 98 that the spring 99 has little effect on the movement of the armature lever 91.

With the magnet 81 energized and the armature lever 9| in its operated position, the spring 98 is permitted to pivot the bellcrank 96 so that the end'of the arm 99 thereof is in the path of or in engagement with a curved arm I9I, Fig. 9, of stop gate I92 toblock movement thereof. The stop gate I92 is pivotally mounted on a shoulder screw I 93 carried in a substantially circular plate I94. A spacer I96 spaces the stop gate I92 from the plate I94 a predetermined distance for reasons hereinafter apparent. Theplate I94 is pivotally mounted on a flanged bushing I91 which is carried in a bracket I98 attached to the hereinbefo're-mentioned bracket II. The flanged bushing I9! is at the forward end of the selecting camshaft 29 and concentric therewith. An arm I99',Figs.'10 and 11, of the stop gate I92 is in the path of the end of the stop arm 84 and normally engaged therewith to'stop rotation of the sele'ctor cam shaft 29. With the stop arm 84 engaged.

A stop arm 84 clamped to the with the arm I99 of the stop gate I92, it tends to pivot the stopgate in a clockwise direction as shown in Fig. 10 but, with the bellcrank 96 in the assumed position, pivoting of the stop. gate I92 is prevented, .thus the selector cam shaft 29 is held at rest. I

Let it be, assumed that the start impulse is received on the selector magnet 81 and according to general practice this start impulse is an open line condition- Accordingly, the start impulse allows the spring 93 to pivot the armature lever 9| to its unoperated or retracted position and during such movement of the lever 9| the bellcrank 96 is pivoted a slight amount in a clockwise direction as viewed from above against the action of its attached spring 98. This pivoting movement of the bellcrank 96 moves the end of the arm 99 out of engagement .with the arm I9I of the stop gate I92. Thereupon the stop arm 84 is allowed to pivot the stop gate I92 in a clockwise direction as shown .in Fig. 10 until the ends of the arm I99 and the stop arm 84 clear one another. At this time a spring III attached to the arm I9| of the stop gate I92 pivots the same in a counterclockwise direction until the arm |9I strikes against a stop II2 which places the arm I99 again in the path of the stop arm 84. Thus the stop arm 84 and selector cam shaft 29 are released in response to the start impulse preceding each code group of signals.

The speed of rotation of the selector cam shaft with respect to the code groups is such that it will complete a revolution during the receipt of the rest impulse following the five intelligence impulses. The rest impulse is a closed line condition and accordingly the armature lever 9| will be moved to its operated position allowing the bellcrank 96 to assume its normal position and in this position the end of the arm 99 thereof is in operative relation with the arm I9I of the stop gate I92. Thus, as the stop arm 84 completes its revolution it engages the arm I99 of the stop gate I92 and pivots the same in a clockwise direction against the action of the associated spring III until the outer surface of the arm I9I engages the end of the arm 99. Thus the stop arm and selector cam shaft 29 are stopped in response to the rest impulse following an associated code group.

The rotatable plate I94 which carries the stop gate I92 has a lug H3 extending axially therefrom into which is threaded a thumb screw H4. The lug II3 extends beyond the circular upper edge of the bracket I98 and by tightening the thumb screw II4 the rotatable plate may be clamped to the bracket I98. By loosening the thumb screw II4 the plate I94 is movable about the axis of the selector cam shaft 29 and obviously such movement of the plate I94 changes the rest position of the selector cam shaft 29 with respect to its associated elements. A set of indicating marks such as H6 on the bracket Hi8 cooperate with the thumb screw I I4 in order to indicate the amount of movement of the plate I94 when taking a range. As the plate I94 is moved receipt of code signals greatly facilitatingtheta-15:: ing Ma -range the restmositionact tn of to the left.

j I21 of the latches III. I lector magnet is deenergized,rthe armature lever III and plate I29 are positioned so that the dependingsection I28 is out of the path of moveends oflassociated 8616017015134:

selector cam 'shaftzt may be v riedzwitrum ree liable the-t selector 2' cams:

thereon' to cooperate with theirassociatediele toi moveithexiselectors 'b'odilyzrtouthei;right: The -i ments during the midportion or mostl eiiective I portionoftheir respective .-signa;linge impulses. The manner-1 in: whichlthacselectorr: camsill 951d!) 1 cooperatewith 1 theirE associated? elementsi willx hereinatte'ribe described'rin detail...

As: shown in' Eigl 2, the hereinhefore Inentiuneds: select-or latches: I I1 areesuitably; supported ,loee' tween: vertical guidezplatesssuclr asi-II 8:and::asso h elated with wrespective onesrofitheaselector; camsz;

springezthereby; keepsizther'surfacesil 3310f: thecse'a lectors I 34 m. engagement-witlf thezlowerssuriacesz of the-:bifurcations'so-f therlatohes I I It: and the leftfhandzedgesof the :horizontal slotsJ 36 against' The-:twopaths: ofimovement-xof-i aselectorslatch-z I I I I in: response-i201 theztw'o :of: signals area cei-ved: om the .-;.selector magnet; I 81% willnnowwloea described; Let itzbe :assumed that the .firstein,

I95 The selectonlatchesPII'I landzther'guidaplates. telligence impulse:receivedxo th ,sel t I I8 are supportedionfstudsisuch as :I I9 extending; horizontally fromza mountingzplate-I 2 I supported from theirameetie. Theaselector latchesvl Ilare- I I in th el same-ivertical plane-vaszassociatedselectorw cam I9; andinrovementz thereof-tin:- the vertical Y planesl: is I permitted in" the manner hereinafter I Referring now toj'Figal', whichshowsthe selector.

1 latcheszI I'Izin an exploded arrangement, and. Fig:

5, which. shows :onezof the: selector latches and I associated: elements, it will'qb'e: noted th'atr the I latches are disposedin: asubstantial vertical position': andith'atrthe lower-ends;-- have-horizontal bifurcations ;I 22 ,therein: with-the openings :there passes through :theloifurcatioz s.- I 22 :and. supports 1 th ;s'elector:1atches:. I I1 -there at.- Adjacent the center-right hand :side ofeach-selector latchi I? is a. camiollowing projection I 24, which normally:

engages theperiphery; of-an associated selector cam '19. Individual springs: I26 attached toe-theselector latches :I I I r alooveihe projections. I nor.- mally tend 'to pivot thelatches in .a clockwise-db rection about the pin I23 andv hold thecam-iolerightwardly extending projections I2I, which cooperate in a manner hereinafter describedwith.

1 the depending-section I28 of aplate vI29 attached tothe armature'lever 9| byscrews I3! for movement therewith to determine the paths of movemen-tofthe latches V V A v Whenthe selector magnet'B-J is energizedthe armature lever 9| is positioned, together withtlie plate I29, so that the depending section l28'islin front of the rightwardly extending projections.

Similarly When the sement of the latches III asshowntby,-the dot dash position thereof in Fig. 5.

Each of the selector cams l9 have notches such 1 as liiz therein and the notchesin the individual cams are positioned so that they rotate into opera- 1 tive'relation with camfollowers I Z I-on associated latches III progressively during rotation of the selector cam shaft 29. Theselectorcam shaftiil is released as hereinabove described-and the: orienting, mechanism preferably; adjusted to allow the notches I32 toengage their-associatedcamfollowers I24 during the .midportion or most effec- I I tive portion of their associated signaling impulses.

tionsr. andihavez horizontalislots I36 1 at the:- left hand endsthereofg:whichieng'ageiaistationarmpirr:.

net 81.. is: an, opem line-e condition: Accordingly;- thezplate I29 --and armature leverrsl wills-be. DOSE-3* tioned 13011111811 'unoperated position: withztheczdea pending: sectiorr I281'of :thETrplfltG: I 29 abovexanda out of operativealignment with the" rightward'lw extending projections of the latcheslI I1. I With-v. the'plate I29 in this-postion; the-.asso'ciated-springt 42ers. allowed to pivot the first selector-latch? I in a-clockwise direction about :the pin I 23 at' ;its.

n lower end as..the-.-notch I32-.in the firstiselectori A stationaryzhorizontal. pin. I23,

earn 79- rotates into operative relation with the 1, cam follower I 24.- Suchpivoting of the latchil I1; hasno: appreciable efiect on the associatedvz'seelector I 34-andIit therefore remains in. its latched; or unoperated position.- Asl the -selectorzcam. I91 continues to rotate, the notch :I 32 thereinrrotatesa out ofoperative relation with.- the; cam :follower I2 and in doingso cams theselectordatchs III backv into its-normal position. Thusifonopen line.-v

intelligence impulses/the associatedtselectors: I 34 lowingsprojections-against their associatedv cams. I At the upper endsotthe selector latches III are remain. latched in their normal unoperatedvposi ions.

Now let .it .be assumed that. a closedline' con-=- dition -is. effective-upon the. selector magnets-81'- during. the time. one of the notches-I32 in.a.-se-- lector cam rotates into operative relationiwith acamiollower I 24 on an associated.selectonlatch; I IT. For the closed line condition. as' hereinbeefore described the depending arm I2B'is in-lfront :of the -rightwardlyz extending projectionsu I 21 of. all of thelatches I I1. Therefore; as the pr-ojec-.-- tion I 24 starts .to entertthenotchcl 32in the assoe ciated. camv under the. action...of-the springz I 26, thefiproj ection I 21 1 at the upper-Wendi thereof. .en-

0i=gages the dependingssection I 28 of. the :plate to:

stop further pivoting, thereof a in. this. clockwise direction. At thisztimethe projection I24-. -wi1l: not :haveentered. to the full .depthof thernotch I32 andas the spring I26r continuesltoeiiert a'l force- 0n. the. latch I I 1,,it: pivots in a counteraclockwise direction about the .uppervend.-thereof;. with the projection I 2! in engagement :With the section I28serving as .a' pivot point. Duringsuch; counter-clockwise: pivoting. of a: latch I I! 7 about ritS.-IlOrm&1 position: aslthe :notch I32 passes' out of;-

operative relation. with the; cam. followerr I24 Thus :in response; to azclosediline intelligencefim-w pulse alatch I I I isrselectivelyz operatedntopermit theassociatedaselector 'l 34 toassumaanvunlatched wnositiom- In accordance with the above the'five latches I I1 are operated in either one or the other of their two paths of movement in response to the opened andclosed line conditions effective on the selector magnet 81. Thus in response to a signal group the selectors I34 are selectively operated and assome a setting in a combination of normal latched and unlatched positions representative of the code group.

When the selectors I34 are unlatched as hereinbefore-described and move to their selected unlatched positions, they rest on spacing collars or studs I49 with projections I on the right hand ends thereof just above a horizontal selector reset bail I42. The bail I42 is carried at the free end of a selector reset lever I45 which is pivoted at its right hand end on a shoulder screw I43 suitably supported in the frame. Adjacent the center of the reset lever I45 is a cam follower I44 in opera- -tive relation with the periphery of the hereinabove described selector reset cam 60. A spring I46 attached to the lever I45 holds the cam follower I44 in contact with its associated cam 60. Also formed in the right hand ends of the selectors I34 are vertical bifurcations I41 with the openings thereof at the bottom. In the normal latched position of the selectors the bifurcations I41 are above a verticaltransfer bail I48 and out of operative relation therewith. However, when the selectors I34 are unlatched the right hand ends'drop down and the bifurcations I41 therein straddle the transfer bail I48 to be operated thereby in a manner hereinafter described. A selector I34 in its latched position is shown in Fig. 6 and illustrates the position of the projection I 4| with respect to the selector reset bail I42 and the bifurcation I41 with the transfer bail I48. The transfer bail I48 is carried at the upper end of a vertical transfer lever I49, which is pivotally supported at its lower end on a shoulder screw II suitably supported from the frame. A cam follower I 52 adjacent the center of the transfer lever I49 is held in operative relation with its associated transfer cam 6| by an attached spring the same about its pivot I59 a slight amount in a' clockwise direction. Such pivoting movement of the trip lever 54 releases the positive action clutch 46 on the operating cam shaft 26 to cause the rotation of the operating cam sleeve 42 in the manner pointed out above. As the trip lever 54 is only momentarily operated, the operating cam sleeve 42 is released for only one revolution at a time in conjunction with each revolution of selector cam shaft 29. Shortly after the operating cam sleeve 42 is released for rotation with the constantly rotating operating shaft 26 by the operation of the clutch 46, a hump on the transfer bar reset cam 62 rotates into operative relation with a cam follower I66 on a transfer bar reset lever ISI, Figs. 1 and, 5, to operate the same in a clockwise direction and then allows an attached rection back into its normal position. The transfer bar reset lever ISI is pivotally mounted at I63 and carries at the upper end of the vertical arm thereof a. transfer bar reset bail I 64.

At the right of the transfer bar reset bail-I64 are depending sections I66 at the right hand ends of transfer bars I61. The transfer bars I61 are disposed in vertical alignment with associated selectors I34 and are guided for longitudinal movement in thedirection of their length by the bifurcated left hand ends engaging collars I on a stud I68 and the right hand ends engaging on their upper sides the collars on studs I40 and on their lower sides a stud I19. The above mentioned movement of the transfer bar reset bail I64 engages the projections I66 of all of the transfer bars I61 that happen to be in their left hand position, as positioned in accordance to the previous code combination and moves them to their right hand position. Thus all the transfer bars I61 are in their normal right hand position in preparation to having the settings of the selectors I34 transferred thereto. A transfer bar I61 is shown in its operated left hand position in Fig. '7 and in its unoperated'right hand position in Figs. 5 and 6.

Shortly after the operation of the transfer bar reset bail I64 the transfer cam 6| causes the transfer lever I49 to pivot in a counter-clockwise direction and in so doing, the bail I48 at the upper end thereof, which is in engagement with the bifurcations I41 in the selectors I34 in unlatched positions, moves the same toward the left to selected operated positions. This leftward movement of the selectors I 34 brings the lefthand surfaces of projections I69 thereon into engagement with the right hand ends of associated transfer bars I61, to cause the associated transfer bars to also move toward the left into their left hand positions. Individual spring members such as I1I tend to prevent movement of the transfer bars I61 and tend to retain the same in either one of their operated positions. As clearly shown in Fig. 5 with a selector I34 in its latched position the bifurcation I41 does not straddle the transfer bail I48 and therefore the selectors I34 in latched positions are not operatedby movement of the bail I48. Accordingly the transferbars I61 associated with latched ones of selectors I34 are'not moved on the transfer operation but remain set in their right hand positions. Thus by operation of the transfer bar reset bail I64 and transfer bail I48, the transfer bars I61 are fixed or set to their normal right hand position and thenthe setting of the selectors I34 transferred thereto, whereupon the transfer bars I61'assume a combination of settings in left and right hand positions representative of the character code just received.

The timing chart shown in Fig. 12 shows the preferred timing of thevarious cams on the operating cam sleeve 42 relative to their associated elements and it will be noted from Figs. 5 and 12 that there is a slight dwell in the transfer cam 61, following the hump or section of greatest radius thereof. This dwell is of slightly less radius than the hump of the transfer cam GI, and accordingly the selectors I34 being operated by the bailI48 will momentarily he stoppfid in their movement toward the right as themovement of the transfer bail I48 'is momentarily stopped as it pivots back to its normal position.

While the transfer lever cam follower I52is in operative relation with the dwell 'on the transfer cam .6I,' the hump of the selector reset cam 60 engages its associated follower I44 to pivot the 56 tazsezgace sselector s-resetiilever L1 45 :in :suchea :mannereas-zto :elevate "the restbail-flfl. :flm'ingfthistmoyement of the reset h-aili I142: ittlezeng'agesithe:projections I 4 I :f the" unlatchediselectors I SWFfiHdiEIBYatGS :ciated :codeadiscs I 16 sandas" theztransierzhars are: movedirom :.one:positiomtotzthetothemassotciated ones.:of;.the.2codezdiscs; l1fizaretrotated" from tone: :of theinpositionsf toxthemther. rhccordingly,

the right hand ends thereof;to:bring:theasurfaces athemodexdiscs I-IGEassumeAa; setting inf: combina- I33Ithereoi1 :above -lthe-latcliing ';'surfaces ;"of' the --T bifurcations LinzthefiatcheslI I1.s .This::move- Qment 110i the'iselectors I534 also disengagesithe 'i'bifur'cations' :I41 "from titheftransfer :bail 1148',

- tions: oflftheir :twoflpositions ;oorresponding: to:,the r'rsettingiofttheztransferabars I61. For; each setting 56f the codeii-discs; I16, a:zseriesiof:.znotches,;one ;in

each code disc, will be in alignment. sThiszallows pc the lfattached Sp s I33 move the 5110 H the: stopim'ember I'18zassociatedt therewith-iden- F selectorsitoward the'righmand when; thezselector z'resetbar I42 subsequentlymoves 'downward' back into itsinorm'al position;;the:suifacesu I33rengage :the :uppen'surfacesiof the bifurcations I 22:.in :the

' ter 1' into i-the row :of aligned notches under the '2 action 10f :anzassociated spring, I8I. :Assarstop azmefnberi I 'l szventers' aTI'O'W of aiignednotchestin the: code: iiiscs itirpivotss adjacentzthez right :hand

fiatcheslfl tobe latche thereat'in theirinormal l -,.t-endathereof;on:vaipivotzplate 1:84,:Fig. 4;;to'place V fiiatchedpositions. Themovemenst oftheselectors 134 'toward'ithe; rightza lslightramounti prior to theelevatiomof their right handtends hy'thereset fi'bailzdisengag'estthem fron'tthe'rtransfer bars I61 tithe; rightzhandz end" in" the rpathzof theiendzofz a stomarm El 86. 'szTheistopr arm 186::is :clamped'-to :a :hub I81ifixed: ori the, typewheel vshaft:31,1tand v hencesis rotatable zwithcthetypewheel' shaft.

and :prevents: any bindingzthereat. 'flhe opera-=r:20 5-Normallyltherighfihandendsof theistonmemtion 'of the reset bail MZJOCCUIS duringrthe dwell -.en the "transfer cam' 6 I? and" accordingly prior 1 to :the complete return Offi theatransfer bail I 48 to its "normal position, therefore elevation of the bers l 18 are; outrofzftheypath .o'f; :thezend ofthezstop arm tflfiaand when .a': stopmember;is;-selectediby :ienteringzag row -..of:- aligned fiIlOtChBS; incthe cdiscs, .therright" handwend :moves :into the; path :of;the,

right hand ends of the selectors I 34 .occurs'beforer istoparm I85 to stop the samexthereat. Also fixed ithey are moved'sufiicientl tothe right to bring the surfaces I33 into operative relationwith the "bottoms ofthez'associatedflatches II'I Thusthe :selectors: I3lt'are latched in their normal latched -II1tand there zistno engagement :between the V vselectorsiandthee-latches :ufitilztheasurfaces -I33 -engage thel' lowerrsurfa'cesiof thezbifurcaticns I I22 'inithei latches. Thusitheslatch'es I'I1- are :not

' position withouttdisturbingtheselector latc ese ltions. Whenlthetransfer-bars- I61 arepmoved'wto their ;normal;-right::handvposition;asf;hereinabove a-described,;the;code discs associated withstransfer bars-;in;.their leftzhand, positions are cia-lsogmoved, xandzincdoing -so7 ..the stoprmemberj- I18: previously disturbed during the resetting of I the selectors 35 t-selected is cammed-backinto its normal; position I 34 -as theyi wonld be: if the selectors were moved tc the IighUDIiOIWtO .thet'elevationof the right Zhand ends thereof. Suchian arrangement has the advantage in that it' permits rapid: operation ;;by virtue ofthe slopesqatthezedges .of thenotches .ein' the-discs. This:releases'a'thetypewheel shaft stop arm" I 86 whereupon it" rotates under theraction of the. frictionv clutch. I12;until it engages the f of'the' Selectors 3 m no: time is requ 108- stop-member selected when the code-discs I15-are 'tween successive cycles of :operation "for the latches" to settle down 'in' theirrnormal positions. The transferibars I 61 "control a typewheel' stop -unit which;inrturn controls the stop position of satypewheel. The typewheel StOpjuIfit': shown in :constantly rotating. gea1 33 through. the action of I :la'ffrictionclutchindicated in general :by reference a'numeral I12, theifrictionrclutch I 12 being similar ginconstruction'to: the frictioniclut'ch 61, Fig, '2, V

limits-about the-sleeve 'I14in a mannenherein- V 1- after describedandarrangedtaround the peripheries thereof are notches, the-arrangement of: the notchesin each: code disc being different: from that in eachof the others. Cooperating withthe" 5-.of the rightwardly-extendingiarmcof afeedrlever notches in that-code discs- 1 are stop;-membersor bars- I 18;- which. are guideddn-radial' slots, in guide v-imembers I19 adjacent the ends thereof while as .tsociated springs I 8 I tend immovethestop mem- 1 hers I-18vtoward ithevtypewheek shaft 31.

, ;-:At.the'upper.side of the codediscs 1 15; are-radial xslotsiIBZ asshown inFigs; 1f 5z'and'7, 'which engage thewoundedcxdepending" proj ectionsl I 83" adjacent tthe-leftihand-ends.of associatedttransferbars I61.

amovedzin a:combinationhfrsettings representative s .of the. positions 1 of zlthe selectors; I 34. :Thus the .typewheel I88; is -:stoppedin. *a selected angular position with: a type 7 element; on. ,the periphery Lthereof corresponding tothe-code-groupjin printing position. -'I-.he@ma-nnerin whichstherprinting operation; following the positioning of. thetype- ,wheel is :accomplished-wvill (hereinafter 1be:;de-

;': scribed, together with .-t-he feeding; of: the. recordgperiphery thereof .bothzupper and lower case-lobar 1: acters; andthe; position. of the: shift, disc I 1,7;E 4,:determines-(which will be recorded. ..'Ihe.: shift employed 'to *rotate'the'rselector camrshaft 29. 5 1. disc is -positioned asadescribedin theiDirkesaet al.

: patent --s11pra,.- yin response. toshift and: .unshift trolledtby their associatedcams 51 and 58,5Figi 1, we and n1 are'rotatable"withinpredetermined j respective y :and :as herei before stated, t

. camsare located onfltheloperatingacam sleevei ll cfor rotationtherewithto perform-their associated .operations-yduring each ;cyc1e of operation of the ssleeve. ..In-toperative:'relation with .the tape feed cam 58-is .-a1cam follower I89 carried at-the-iend .ISI. ..'I-he-feed-lever ISI isinztheshapeotabell KCIBJIK; 311G515 pivotally mounted on a: pin l 92; snpsported.fromtheframe. .The leftwardly extend- 703mg arm: I 93; of the feed lever 19L carries inthe fiend-thereof :a shoulder: screw 5-1 94. :Pivotally =monnted. onsthe shoulder-screwsI-M/is azvbelll crank 1 tsawhich has a depending1- arm -I91rwith-; a; paw1 nor hook. thereon normally held,'iinseengagement iThe transfertbarssl 611 aresimalignmentimtlrasso-i iwi 1-th ,r10tches .,in a feedratchet wheel, J'98vaby a spring I95. The feed ratchet I98 is'fixed for rotation therewith to a feed roller I99 over which a recording tape is arranged to pass. A pressure roller 20I on the free end of a spring biased lever 200 is held in engagement with the tape T passing over the feed wheel I99 and when the feed wheel is rotated, the tape is advanced. A spring 292 attached to the feed lever I9I holds the follower I09 against the periphery of its associated tape feed cam 58 to cause operation of the lever I9I as the cam rotates.

As shown in the timing chart, Fig. 12 of the various cams on the operating cam sleeve 42, the tape feed cam 58 oscillates the feed lever I9I to feed the tape soon after the selector reset cam 69 operates its associated bail, and following the feed operation, the print cam 51 operates a print lever 201 to perform the printing operation. The print lever 201 is pivotally mounted on the pin I92 and has attached thereto the spring 202 which holds a cam follower 2 at the end of the vertically extending arm in contact with the periphery of the print cam 51. The print lever 20! has at the end of the leftwardly extending arm thereof a print hammer 2I2 which is adapted to pass through a hole 2I3 in a tape guide 2I4 to force the tape against the typewheel each time the cam 51. allows the print lever to oscillate. The typewheel I88 is selectively stopped as hereinbefore described with a character thereon corresponding to the received code group over the print hammer 2I2 and, as the tape is pressed thereagainst by the print hammer 2| 2, the character is recorded on the tape, the typewheel being inked by an absorbent ink roller, not shown, in

a manner well known in the art. Thus in conjunction with each revolution of the operating cam sleeve 42, the settings of the selectors I 34 are transferred to the code discs I16 through the instrumentality of the transfer bars I61 to stop whereupon the corresponding character is recorded upon the tape, the tape being. advanced previous to the printing operation to move the previously recorded character from beneath the typewheel I88. I

Also rotatable with the operating cam 42 is a notched disc 59 which cooperates with a spring biased lever 2 I 6 to prevent rotation of the operatin cam sleeve 42 in a reverse direction when brought to rest at the end of each revolution. Actually the notched disc 59 is positioned between the tape feed cam 58 and the selector reset cam 60 as shown in Fig. 2. However, in Fig. l for the sake of simplifying the drawing, the notched disc 59 is shown at the right of the transfer lever I reset cam 62.

extensions 2" which extend past the right hand side of an arm 204, adjustably attached by screws 205 to a bell crank 206 pivotally mounted at 209. Whenever any one of the stop members H811 to I'I8c is selected, the extensions 2 I 1' thereof enga e the arm to cause the bell crank 206 to pivot a -slight amount in a cou nter-clockwise direction and place the upper end of the left hand arm of the bell crank 206 beneath the end of the rightwardly extending arm thereof engages the upper end of the left hand arm of the bell crank 206 and causes the arm 19'! or pawl to move away fromthe ratchet wheel I98. Accordingly for such an operation of the feed lever I9I the ratchet wheel I98 is not stepped and the tape T will not be advanced. If the next signal is a character representing signal the receipt thereof causes the return of the selected one of the special stop members I'I8a to I to its normal position whereupon an attached spring 25! is allowed to pivot the bell crank 206 to its normal position with the upper end of the left hand arm out of the normal path of movement of the rightwardly 'ex'tending arm of the bell crank feed pawl I96.

I cause rotation of the same in conjunction with the character signal, The spring 2! I biasing the bell crank 206 to its normal position may be very light and therefore put a very small load on the special stop members I'Itc to I when blocking out a feed operation. A pivoted spring biased retaining pawl 208 engages the ratchet wheel I90 to prevent rotation thereof in a reverse direction as the pawl I9! moves downward to pick the typewheel in the selected angular position up a lower tooth. I

A section of the typewheel adapted to be positioned overthe print hammer 2| 2 when the: stop arm I86 engages the special stop members l'lBa to 5180 is cut away so that as the print hammer elevates the tape, no recording occurs thereon for the attendant cycle of operation. Thus the feeding operation of the tape may be blocked out for predetermined selective cycles of operation of the receiver and the instrumentalities for accomplishing this are simple in construction, reliable and positive in operation which constituted an important advantage in receivers of this type.

It will be obvious that various modifications of the invention may be made without departing from the spirit or essential attributes thereof and it is desired, therefore, that only such limitations be placed thereon as are imposed by the prior art, or specifically set forth in the appended claims.

What is claimed is:

l. A telegraph receiver comprising a series of movable and normally latched selecting elements, a corresponding and associated series of latches therefor, means for operating said latches in marking and spacing cycles in accordance with received signals. to selectively unlatch associated of said selecting elements, a plurality of notched code members each having normal and operated positions, means for simultaneously moving said notched code members to their normal position,

and means operative thereafter engaging said unlatched' selecting elements for simultaneously 'moving associated of said code members into operated positions in combinations according to the position of said selecting elements.

2.. In a selector mechanism, a series of selector elements each having a normal latched position,

disc cam on said rotatable member and cooperating with said individual resilient means for simultaneously moving said transferringly moved selectors back to said normally latched position.

10. In a telegraph receiver, a plurality of latches, a plurality of selectors one individual to each of said latches, each of said selectors having a plurality of positions and normally latched in normal position by associated latches, a set of transfer members one individual to each of said selectors, means responsive to received permutations of signal impulses for selectively operating said latches to unlatched associated selectors, individual resilient means for moving unlatched of said selectors to unlatched position, a rotatable member with a plurality of cams rotatable therewith, said rotatable member normally being at rest and released for one revolution at a time in conjunction with the receipt of each permutation group of signals, means operated by one cam on said rotatable member for simultaneously moving all of said transfer members to a normal position, means operated by another cam on said rotatable member for simultaneously moving unlatched of said selectors to transfer the setting thereof to said transfer members, means operated by still another cam on said rotatable member and cooperating with said individual resilient means for simultaneously moving said transferringly moved selectors back to said normally latched position, a recording mechanism selectively controlled by said transfer members including a print hammer and a tape advancing mechanism, a recording tape and means operated by cams on said rotatable member for operatin said print hammer and said tape advancing means to record characters on said tape corresponding to received permutation groups of signals and advancing the same in conjunction with each received permutation group of signals.

11. In a telegraph receiver, a plurality of latches, a plurality of selectors one for each latch and normally latched in normal position thereby, signal responsive means for selectively controlling the actuation of said latches to unlatch associated selectors, a set of notched code members one for each selector and having normal and operated positions, a set of selectable members associated with said notched code members, said selectable members being selected by notches in said code members, a rotatable member, means operated by said rotatable member for moving said notched code members into normal and operated positions in accordance with the selective operation of said latches, a rotatable typewheel, means controlled by said selectable members for selectively positioning said typewheel, a recording tape, a recording tape feeding means including a ratchet wheel and a cooperating pawl, said pawl normally being in engagement with said ratchet wheel and invariably operated by said rotatable member and means operated by the selection of predetermined of said selectable members for removing said pawl from engagement with said ratchet wheel on the invariable movement thereof whereby said tape is not advanced for the associated operation of said rotatable member.

12. In a cyclically operable telegraph receiver, a set of latches, a corresponding set of selectors having a plurality of positions and normally latched in a normal position by said latches, means for selectively operating said latches in accordance with received signals to unlatch associated selectors, a transfer bail normally out ofoperation with said selectors with the same in latched position, means for successively moving unlatched of said selectors into operative relation with said transfer bail, means operative thereafter to actuate said transfer bail to simultaneously transferringly move unlatched of said selectors, a selector reset bail, means for operatingsaid selector reset bail following the transferring movement of said selectors to simultaneously disengage said selectors from said'transfer bail and initiate the movement of said selectors back into normal latched position.

13. In a cyclically operable telegraph receiver,

a set of latches, a corresponding set of selectors having a plurality of positions and normally latched in a normal position by said latches, means for selectively operating said latches in accordance with received signals to unlatch associated selectors, a transfer bail normally out of operation with said selectors with the same in latched position, individual resilient means for successively moving unlatched of said selectors into operative relation with said transfer oail, means operative thereafter to operate said transfer bail to simultaneously move unlatched of said selectors to a transferring position and simultaneously tension said individual resilient means. a selector reset bail and means including said reset bail and said individual resilient means for simultaneously moving transferringly positioned of said selectors out of engagement with said transfer bail and back into normal latched position.

14. In a cyclically operable telegraph receiver, a set of latches, a corresponding set of selectors having a plurality of positions and normally latched in a normal position by said latches, means for selectively operating said latches in accordance with received signals to unlatch associated selectors, a transfer bail normally out of operation with said selectors with the same in latched position, individual resilient mean for successively and pivotally moving unlatched of said selectors into operative engagement with said transfer bail, means operative thereafter including said transfer bail for simultaneously linearly moving unlatched of said selectors to a transferring position and simultaneously tensioning said resilient means, a selector reset bail, means including said selector reset bail and said individual resilient means for simultaneously'moving said transferringly operated selectors in combined pivoting and linear movement out of engagement with said transfer bail and into normal latched position and means for controlling the pivoting and linear movement of said selectors into normal latched position so that said selectors engage associated latches only when in latching engage ment therewith.

15, In a cyclically operable telegraph receiver, a set of latches, a corresponding set of selectors having a plurality of positions and normally latched in a normal position bysaid latches, a set of transfer levers, one for each of said selectors and having normal and operated positions, a transfer bail, said selectors in normal latched position being out of operative engagement with said transfer bail and said transfer levers, means for selectively operating said latches in accordance with received signals? to unlatch associated selectors, individual resilient means for movin unlatched of said selectors from said latched position into selected position, said selectors in said selected position being in operative engagement with said transfer bail and associated ones of said transfer levers, atr'ansfer lever resetbail, means including said transfer lever reset bail to move :said transfer levers to normalposition, means operativethereafter including said transfer bail to simultaneously move said selectively positioned permit said individual resilient means to thereafter move said selectively positioned selectors a fractional. part ofsaid transferring movement in .a reverse direction. to disengage said selectors from said transfer levers, a selector reset bail and "means including said reset bail andsaid individual resilient means to simultaneously move said selected selectors tonormal latched position.

Y, 116. In a cyclically operable telegraph receiver, a set of notchedcode members, said membersibeing operableinto permuted settings in one or the other. of two positions in accordance with received signals oncefor each cycle of operation of said receiver, a plurality of selectable members selected by rows of notches in said notchedcode members, a rotatable typewheel selectively positioned by. the selection of said selectable members, a recording ,medium advancing means including a toothed member and any operating element therefor, saidoperating lement normally being in engagement with said toothed member and invariablyoperatedfor each cycle of operation of saidreceiver, an abutmentfor said operating member and.means controlled directly by predetermined of saidselectable members for selectively positioningw said typewheel and positioning said abutment whereby said operating element is Withdrawnifrom engagement .withsaid toothed member during and by the invariable V movement thereof. to disable said recording medium advancing means for. the attendant cycle of operation of said receiver. r

17. In a telegraph receiver,.a set of notched code members selectively positioned in accordance, with received signals, a set of selecting members selected by, said code members, a re,-. ceiving mechanism selectively controlled bysaid selecting members including a cyclically operable web feeding means for advancing a web, means controlled by the selection of predetermined of said selecting members and dependent upon the operatiomof part of said web feeding means for disabling the same to advance said web for cycles of operation in which thevpredetermined of said selecting members are selected.

18. In a selector mechanism, a series of selector elements each having a normal position, a partially operated position and a fully operated position, resilient means for moving said elements from said normal position to said partially operated position, a first power operated means formoving said elements from said partially operatedrposition to, said fully operated position, a second power operated means, and means including said second power operated means and said resilient means forsimultaneously moving said elements from said fully operated position 7 directly to said normal position without passing through said partially operated position, said selector element actuating means operating in the order named. V

19. In a selector mechanism, a series of selector elements each havingva normal position, a partially operated position and a fully operated posi-' tion, resilient means for pivotally moving said elements from normal position to" partially'operated position, a first power operated means for linearly moving said elements simultaneously from partially operated position to fully operated position against the action of said resilient means each means invariably tends to return said elements from fully operated position to partially operated position, and a, second power operated means cooperating with said resilient means for returning said elements in a combined pivoting and linear movement from partially operated position to normal position.

20; In a selector mechanism, a, plurality of selectors, a plurality of'latches, one individual to each'of said selectors and normally latching said selectors in a latched position, means responsive to received permutations of impulses for selectively operating said latches to unlatch associated selectors, individual resilient means for pivoting unlatched of said selectors to unlatched position, a first power operated means for simultaneously linearly moving unlatched of said selectors from said unlatched positions to a transferring position and a second power operated means for simultaneously moving said transferringly operated selectors to. a preliminary resetting position, and means including said resilient means for then linearly moving said selectors simultaneously back into latching relation with said latches.

21. In a selector mechanism, a plurality of selectors each having a selected and an unselected position, a plurality of latches, one individual to each of said selectors and normally latching'the same in unselected position, means responsiv to received permutations of impulses for selectively operating said latches successively to unlatch said selectors, means for simultaneously moving unlatched of said selectors to a selected position 40 through a first path of movement-and meansoperative thereafter for simultaneously returning said selectively operated selectors from their selected positions to said unselected position through a second path of movement, said second path ofmovement being different from said first path of movement.

, 22. In a selector mechanism, a plurality of selectors, a plurality of latches, one individual to each of said selectors and normally latching the same in a latched position, means responsive to received permutations of impulses for selectively and successively operating said latches to unlatch'ed associated selectors, a first means for pivoting unlatched of said selectors at the time of unlatching to an unlatched position, a secondmeans for simultaneously and linearly moving unlatched of saidselectors to a transferring position, a third means for simultaneously pivoting 1 said unlatched selectors to a preliminary reset ting position means including said first means thereupon operative to simultaneously and linearly move saidselectors back into latching position. V I 'T 23. In a selector mechanism, a plurality of selectors each having a plurality of positions, a

plurality. of latches, one individual to each of said selectors and normally latching the same in normal position, means responsive to'received permutations of impulses for selectively "and sequentially operating said latches to unlatch said selectors, means operative on said unlatched selectors for moving thesame through said: plurality of positions, said last means including power operatedcams and resilient means for moving said selectors in a predetermined order of movement so that they occupy said plurality of positions only once for each cycle of operation and means for controlling the application of said selector moving means so that the movement of said selectors into some of said positions are performed sequentially and the movement into others of said positions are performed simultaneously.

24. In a telegraph receiver, a plurality of latches, a plurality of selectors one individual to each of said latches, said selectors having a plurality of positions and normally latched in normal position by associated latches, a first rotatable member, an electroresponsive device, means including said first rotatable member and said electroresponsive device for selectively operating said latches to unlatch associated selectors, individual resilient means effective on unlatched of said selectors to move the same to unlatched position, a second rotatable member, means opercams on said rotatable member for simultaneously moving all of said transfer members to normal position, simultaneously moving the unated by said second rotatable member and including said individual resilient means for simultaneously moving all unlatched of said selectors from said unlatched position successively through the remainder of said positions and back into said normal latched position, a recording means selectively controlled by said unlatched selectors in moving through said pluralit of positions and other means operated by said second rotatable member for operating said recording means in accordance with the control thereof by said selectors,

25. In a telegraph receiver, a plurality of latches, a plurality of electors one individual to each of said latches, each of said selectors having a plurality of positions and normally latched in normal position by associated latches, a set of transfer members one individual to each of said selectors, means responsive to received permutations of signal impulses for selectively operating said latched to unlatched associated selectors, individual resilient means fOr moving unlatched of said selectors to unlatched position, a rotatable member with a plurality of cams rotatable therewith, said rotatable member normally being latched ones of said selectors to a transferring position to transfer the setting thereof to said transfer members and then simultaneously returning said transferringly moved selectors to said normally latched position, the movement of said unlatched selectors being in the order named with the transfer movement being such as to increase the tension in said individual resilient means and the movement of said selectors into normally latched position being assisted by said individual resilient means, printing means, means operable by said transfer members for controlling said printing means and means operable by other cams on said rotatable member for operating said printing means as controlled by said transfer members.

26. In a telegraph receiver, a plurality of latches, a plurality of selectors one for each latch and normally latched in norm-a1 position thereby, signal responsive means for selectively controlling the actuation of said latches to unlatch associated selectors, a set of notched code members one for each selector and having normal and operated positions, a set of selectable members associated with said notched code members, said selectable members being selected by notches in said code members, a rotatable member, means operated by said rotatable member for moving said notched code members into normal and operated positions in accordance with the selective operation of said latches, a rotatable typewheel, means controlled by said selectable members for selectively positioning said typewheel, a recording tape, a recording tape feeding means operated by said rotatable member to normally advance said tape a predetermined distance for each operation of said rotatable member and means operated by predetermined of said selectable members in addition to selectively positioning said typewheel for conditioning said tape feeding at rest and released for one revolution at a time in conjunction with the receipt of each permutation group of signals, means operated by said means to be rendered inoperative on the operation thereof by said rotatable member,

ROBERT F. DIRKES. THOMAS E, MELICK. VERNON R. KIMBAIL. 

